Cooling device



May 27, i941. w. 1 MoRRlsoN COOLING' DEVICE' Filed Aug. l2, 1933 4Sheets-Sheet 1 Jor May 1.941.

W. L. MORRISON COOLING DEVICE Fiied Aug. 12, 19:53

4 sheets-sheet 2 9 fmvez 2502A WZZZQHZ. JZ-arrwwz May 27, 1941. w. LMR'msQN' COOLING DEVIC 4 Shee's-Sheet 3 Filed Aug. 12, 1933 rn/:D

@man

May 27,

1941. w. l. MoRisoN cooLING DEVICE Filed Aug. 12, 1935 Patented May 27,i941 ,ifi

2,243,570 COOLING DEVICE Willard L. Morrison, Lake Forest, lill.Application august 12, 1933, serial No. 684,817

' (ci. i2-140) 11 Claims.

This invention relates to cooling devices and has for its object toprovide a new and improved device of this description. The invention hasas a further object to provide a cooling device to be used in a room orcompartment and which may receive one or more persons. The invention hasas a further object to provide a cooling device which may be placed in aroom or compartment and which may receive one or more persons who willbe in a cool atmosphere but which is not used to cool the room orcompartment. The invention has as a further object to provide a piece offurniture, such as a bed or chair, with means for cooling one or morepersons using such bed or chair. The invention has a further object toprovide a cooling device which will be cheap in construction andeffective in operation `and which can be applied to any piece offurniture. The invention has as a further object to provide a coolingdevice particularly adapted and effective for -hay fever patients. 'I'heinvention has other objects which are more particularly pointed 'out inthe accompanying description.

Referring now to the drawings,

Fig. 1 is a side view showing a bed embodying one form of the coolingldevice;`

Fig. 2 is an end view of the bed shown in Fig. 1;

Fig. 3 is an enlarged sectional view taken on line 3--3 of Fig. 2;

Fig. 4 is an enlarged sectional view taken on line 4--4 of Fig. 2;

Fig. 5 is an enlarged vsectional view taken on line 5-5 of Fig. 2;

Fig. 6 is an enlarged view of the center-post Fig. 8 is an enlargedsectional view taken on line 8 8 of Fig. 1;

Fig. 9 is an enlarged sectional view taken on line 9 9 of Fig. 1;

Fig. -10 is an enlarged view with parts broken away showing the couplingfor the pipe leading to the expansion coil;

Fig. 1'1 is an enlarged sectional line Il-II of Figs. 2 and 3;

Fig, 12 is apview showing a modified construction;

i Fig. 13 is an enlarged view taken on line l3-.I3 of Fig. 12;

Fig. 14 is a sectional view through the pipe in which the air is cooledshowing a modied conview taken on and other materials from the air.

Like numerals vrefer to like parts throughout the several figures.

The extreme summer atmospheric conditions to which people in the northtemperate zone are subjected makes them not only uncomfortable butreduces their vitality, their energy and effectiveness, and theseeffects are multiplied in the southern and tropical countries. The costof cooling buildings and rooms and compartments at present iscomparatively high and the result is that few `buildings or compartmentsare being cooled. Furthermore, with the high wet and dry bulbtemperatures very little sleep is possible with most people and sound orproper sleep is not, as a rule, secured.

The present invention has for one ofrits objects to provide a simple andeffective means for permitting one or more persons to be in a cooled anddehumidified atmosphere without the expense of conditioning the entirebuilding, compartment or room. For purposes of illustration I have shownthe invention as used in connection with pieces of lfurniture, `such asbeds. In Figs. 1 to 11, for example, vI have shown in detail one form ofdevice particularly adapted for the purpose intended. In thisconstruction'a bed of any of the usual types may be used. 'Ihis bed mayhave the ordinary springs and any suitable mattress I. A receptacle 2for the cooled air is provided and its lower edge extends all the wayaround the mattress I, the mattress forming the bottom of the receptacleand forming the sealing device for sealing the bottom opening to preventthe warm air from entering. The receptacle or covering device 2 may bemade of anysuitable material.v I prefer to make it of lightmateriaLwsuch as aluminium, although it may be made of any metallic ornon-metallic material adapted for the purpose. When the receptacle ismade of aluminum it is preferably made with an outer section 3and-an'inner section 4 with heat insulating material 5 between them, asshown in Figs. 4, 5 and 8.

Doors are provided at the side of the cover or receptacle 2 so that theparty or parties may get into and out of the bed and so that the bed maybe made up. In the construction shown I have provided two doors 6 and 1.These doors have frames extending about them. Within theseframes are aplurality of transparent sheets 8 and 9 which may be of any suitabletransparent "material, such as glass, Celluloid, Cellophane or the like.

In'order to facilitate the handling of the cover or receptacle, I preferto build it into sections,

there being a bottom section I and a top section II. These sections areconnected together by the fastening devices I2 and I3. The dividing lineat the end carrying the door 5 is up high enough so that the hinges I4of this door may be placed on the same section, as for example thesection I0. The door 'I has its hinges I5 connected with the section IIso that when the device is separated one door will be with one sectionand the other door with the other section. Intermediate the doors 6 andI is a center post I 6. lThis center post is removably connected withthe sections III and II by the fastening devices I'I and I8 so that whenit is desired to separate the device into its two sections, this LAcanbe done by removing the fastening devices I2 and I3 and I'I and I8,r Thedoors 6 andA 'I -preferably have a plurality of transparent sheets, thedoor 6 having the sheets 8 and 8a and the door 'I having the sheets 9and 9a, See Fig. 9. These sheets have an air space between them so as toact as heat insulating mediums.

The door 6 is provided with a handle I9 on the outside which isconnected with the shaft which is rotatably mounted in the door,- and-there is ya locking member 2I inside the cover I latter locking memberhaving an inclined face so that when the two locking I members arebrought into engagement the door is pressed inwardly. There is a packingmember 23 entirely around the `door which, by the closing of the door,is pressed tightly against the edges of the door opening to form a sealjoint. There is also a handle 2.4 on the inside of the cover orreceptacle so that any one on the inside can manipulate it to open andclose the door. The door 1 has a handle 25 which also has a lockinglmember engaging an inclined locking member which presses the doorinwardly, and this door also has the packing member 26 extendingentirely be used. I have shown the connection between the pipes 40 and4I in Fig. 10. The pipe 40 has a valve 45 by means of which it may beclosed, and the pipe 4I has a valve 46 by means of which it may beclosed. Interposed between these valves are the coupling members 4'I and48 with the handles 49 and 50. When it is desired to disconnect thesepipes the two valves are closed. The handles 49 and 50 are then graspedand the coupling members turned relatively until the pin 5I is movedfrom the slot 52, whereupon the two pipes are separated. The pipes 43and 44 have a similar coupling and unooupling arrangement.

The cooling coil 42 in the receptacle is arranged in an inner conduit53, Surrounding the conduit 5351s an outer conduit 54. Air is drawnthrough the conduit 53 in any desired manner, as by means of a fan 55run by a motor 55 connected with the receptacle 2. This motor is locatedin a small compartment 5l surrounded by heat insulating walls 58 so thatthe heat ldeveloped by lthe motor will not aiect the interior of thereceptacle. This also makes the compartment 51 sound proof so that theoccupants are therearound .which is pressed tightly against the f edgeof the door opening to make a seal joint.

The frames of the doors may be formed in any desired manner. As hereinshown there is a frame member on the'outside and .the inside and theseframe members are hollow, as shown at 21 and 28. The cover or receptacleis preferably so arranged that its bottom edge comes down substantiallyto the bottom edge of the mattress, the mattressprojecting up into thecasing so as to have an extended bearing surface all the way aroundto-insure its acting as a seal for the bottom of the receptacle. At thetop of the receptacle I prefer to have, one or more air outlets 29.

Some means is provided for properly cooling the receptacle 2., As hereinshown, I have illustrated a cooling or refrigerating unit 30 in asuitable casing 3I which may be separatefrom the bed or other piece offurniture, but in proximity thereto.

This cooling or refrigerating u nit may be of any suitable form. Forpurposes of illustration I have shown it as consisting of a compressor32 operated by a motor. 33. A tank 34 is provided for the refrigerant.The compressor is connected to this tank by means of a pipe 35 whichleads throughl the condenser 35 andconnects with the pipe 31v connectedwith the tank 34; A fan 38 operated .by the motor directsair on thecondenser. 'I'his air passes out through a screen 39 into the room. Apipe 40 leads from the tank provided with an expansion valve 4Ia whichmay not disturbed by its operation. Air iromjthe room passes throughopenings 59 in the receptacle 2 and into the conduit 53, coming intooontact with the cooling coil 42.

Some means is provided for removing the moisture from this air and forremoving dust, pollen and the like from it before the air is passed intothe receptacle 2. The air fromV the room being cooled below its enteringdew point gives up a portion of its moisture to the cold surface of the.the drip pan 64 and can be removed when desired. There is also a drippan 64a which receives any moisture that may accumulate in the outerconduit 54, the moisture dropping 01T and running into this receptacle,and then running down through the pipe 63 into the pan 54.

In Fig. 14 I have shown a construction where there is placed at the endof the conduit 54 an air cleanser of any suitable form, which consistsof the air cleansing material 65 'placed in between two sieve likemembers 65 and 61. The

. air passed through this cleanser has the moisture,

dust, pollen and other impurities removed therefrom. Air is also takenfrom the interior ofthe receptacle 2 and mixed with the outside airafter it has been passed through the conduit 53. 'I'he air from thereceptacle 2 passes through the openings 58, see Fig. 2, into the space8l, see Fla. l1, b'tween the conduits 53 and 54 and is drawn The pipes40 and 44 To remove this entrained moisture I have by the fan along thisspace between the conduits and then passes through the openings into theconduit 53 and mixed with the air therein.

Means is provided for regulating the relative amount of air taken fromthe receptacle 2 and from the room outside said receptacle. I have showna simple means of doing this which consists of a ring 1I surrounding theconduit 53. This ring is provided with holes 12 which register withtheholes 'I8 in the conduit 53, see Fig. 11. By moving this ring thesize of these holes can be controlled as desired. The air from theoutside and the air from the receptacle are then i thoroughly mixed andmoved by the fan up into the receptacle 2, through the duct 54a.

It will therefore be seen that by means of this construction the coldair passing in contact with the cooling coil is tempered by the airtaken from the compartment," the two bodies of air being mixed so as tosecure the desired temperature in the compartment. It will further beseen that the desired mixture can easily be secured by properlyadjusting the' ring 1I.

The air taken from the receptacle may have some moisture due to theevaporation from the body of the person therein. This air therefore,

mixed with the other air in the proper proportions, will secure amixture having the proper moisture so that the individuals in thereceptacle will not have the effect of a too cold or too dry air. I mayuse in connection with the air cleanser a substance like silica-gel toextract moisture from the air, and the air thus having its moistureextracted would make the bed fairly comfortable to -sleep in evenwithout cooling. It will further be noted that not only is theairpassing'to the receptacle properly conditioned by having the.

proper temperature, proper moisture, and being. properly cleansed ofimpurities or pollens, but there is a circulation of air through thereceptacle, as part of the air passes out through the opening 29.

In Fig. 12.1 have shown a' modified construction. In this constructionthe receptacle 2a is not only open at Athe bottom, but atA the end. Thisreceptacle fits down over the mattress which, as in the other case, actsas the sealing device for the open bottom. The end 13 of the receptaele2a has the coil and fan andV associated parts connected therewith and isseparate from the receptacle 2a and is fastened in position in anydesired manner. It may be fastened to the bed if desired, but I preferto fasten it to the refrigerating unit 30 by means of the fasteningpieces 1I. The receptacle 2a is pivoted-at 15 to some fixed-part,preferably the end 13. The receptacle has on the outside at each sidelhandles so that it may be moved about its pivots to the dotted positionshown in 12 to permit the occupants to enter. It has on theinside onboth sides the handles 11 so that the occupants may lift it to thisdotted line position. when they desire to leave the bed. Inl'this casethere are windows 18 on both sides and made of a plurality oftransparent plates. Connected either with the part 13 or the receptacle2a, and extending all the way around the edges ofthe part 13, is aPacking member 2b which, when the receptacle is in its operativeposition. forms a. tight packing sealing connection between thereceptacle 2a and the part or end 13.

-Some means is preferably provided for holding the receptacle in its upposition for the purpose of making 4the bed. This may be done byproviding at one side the links 19 and. The

engage the bed and limit the downward movement of the receptacle. In theconstruction of Figs. 1 and 2there are two folding legs 8l at each end,the legs being pivoted at 82 to the re- 'ceptacle' so that they may bemoved up out of f the way when not in use. A

Within the receptacle, whatever the form thereof, I prefer to lprovidean automatic controlling means for the motor 33 of the refrigeratingunit. Any suitable device for this .purpose may be used.' lAs hereinshown I have illus- Atrated a thermostatic bulb 83 which is connected toa capillary thermostatic line 84 leading to an adjustable pressureswitch 85 inside the receptacle. Any usual switch of this type may beused and thevdevice may be set as desired by means ofthe indicatingpoint 86. Associated with this switch are the conductors 81 and 88 whichlead to the motor 33. This device is set so that when4 the desiredcondition in the apartment is present the device will act to disconnectthe motor 33 from the circuit and stop the operation of therefrigerating unit until the condition in the receptacle requires it tobe again operated, whereupon it is operated. It will therefore be seenthat the proper conditions in the receptacle are therefore automaticallyobtained.

I have shown the device in connection with a bed, but it is of courseevident it may be used in other ways by being placed on` other piecesof` furniture, lsuch as chairs, sofas and the like, and the seatsthereof may be used as the closing and sealing member in the place ofthe mattress.

The device might also be placed directly on the floor and properlysealed at the bottom.

In order to provide additional lighting means I have shown the windows92 and 93 located at The windows have a 9Ia with air spaces betweenr asshown in detail in Figure 4.

The use and operation of my invention are as follows:

The receptacle c'an be easily and quickly installed on any piece offurniture for which it is adapted, or in l-any position desired.The-.refrigerating unit will then be brought into position' andthe'pipes properly connected as hereinbefore set out so that therefrigerant is circulated through the cooling coil I2. Air is then takenfrom the room, that is, is taken from the outside of the receptaclethrough the openings 59 and passed through the pipe or casing around the,l

coil 42 so as to be brought into contact with this coil. This air isconditioned by having the moisture, dust, pollen and other impuritiesremoved therefrom and by being cooled. Air from the receptacle passesinto the conduit 69 and is mixed with the air which has been `cooled bythe coil 42, and this mixture is delivered into the receptacle, the fan55 acting on both the air from the outside of the receptacle and theair"'from the inside of the receptacle. This fan may be a constant speedfan 'or it maybe a fan whose speed of the motor.

speed can be regulated, and in that event the amount of air can beregulated by regulating the This air when vdischarged into thereceptacle will be in the proper condition v this allows the interior tobe illuminated from the outside so as to avoid the heat of a light ofany kind onthe inside. 'I'he lighting is therefore secured withoutinterferring with the temp perature.

The receptacle maybe arranged with suitable `means for conversing bypeople on the outside and the inside. When used for hospital patients amicrophone can be installed inside with a loud speaker outside so thatany sound or talking of the occupant of the bed can be heard on theoutside.

It will be seen that this device may be moved from room to room or frompoint to point as desired. By` having the refrigerating unit separatefrom the bed and receptacle the noise and vibration from therefrigerating unit is not transferred to the receptacle and the bed orother piece of furniture. This refrigerating unit can be easily andquickly connected to or disconnected from the apparatus inthe-receptacle.

I claim: n

1. A cooling and Ventilating device for persons to be applied to 'a bedhaving a mattress thereon. comprising a receptacle, the receptacle beingopen at the bottom and positioned over the bed, the lower edge of thereceptacle being rigid and extending downwardly past. the upper face ofthe mattress so that the mattress projects into the open bottom of thereceptacle the lower end of the receptacle tightly engaging the edges ofthe mattress all the way around, such engagement forming a resilientsealing device extending entirely therearound for sealing said openbottom to prevent the escapeof the cool air, said receptacle having itsupper Vpart spaced away from the mattress substantially throughout thelength of the mattress so as to be spaced away from the body of theoccupant on the mattress throughout the entire length of the occupantsbody, and means for cooling said receptacle.

2. A cooling andfventilating device for per- A bonsntonbe applied to abed having a mattress i ,thereonjcomprisin'ga receptacle, the receptacle`being open at the* bottom and positioned over the bed, said receptaclehaving two stiff ends, 4one of said ends being located between the headof the bed and thermattress, .the other of said ends being locatedbetween the foot ofthe bed and the mattress, the lower inside faceofeach of said ends engaging theassociated vertical end face of themattress,Y the lower portions ofthe sides of said receptacle engagingthe associated Vertical side faces of said mattress so that the mattressprojectsupwardlyinto said receptacle the` lower 'end of the receptacletightly engaging the edges lbodyof the occupant on the mattressthroughlout the entire length of said body, and means said receptacleand out of said outlet, said inlet and outlet andthe portion of thereceptacle connecting them being spaced above the person lying on themattress so that the main current of air passes through said receptacleabove and entirely along the person lying on the mattress whereby suchperson will be out of the direc flow of the air.

4. A cooling and Ventilating device for persons comprising a receptaclehaving an inlet at one end thereof and an outlet at the other endthereof, a mattress forming the bottom of said receptacle upon which theperson rests said receptacle completely covering the entire mattress.

refrigerating apparatus comprising a cooling element on the interior ofsaid receptacle and an air moving device for causing air to move throughsaid inlet past said cooling element into said receptacle and out ofsaid outlet, said cooling element and air moving device being located inthe receptacle within the boundaries of said mattress, said inlet andoutlet and the portion of the receptacle connecting them being spaced nabovethe person lying on the mattress so that the main current of airpasses through said receptacle above and entirely along the personvlying on the mattress whereby such person will be outof the direct iiowof the air.

5. A cooling and Ventilating device for persons, comprising areceptacle' having a space into which a person to be cooled is received,said receptacle located in aroom,v an evaporator in said receptacle,means forbrin'ging air from ,and directing such mixture into the spacein the receptacle into which the person to be cooled is received.

6. A coolingand Ventilating device for persons, comprising a receptaclehaving a space into which a person to be cboled is received, saidreceptacle located in a'room, an evaporator in said receptacle, meansfor bringing air from `outside the receptacle into contact with saidevaporator; in the receptacle so that it will be cooled, means formixing air from the receptacle with said outside air from outside the Vreceptacle so as to provide -a cooled air mixture and directing suchmixture into the space in the recep.

tacle into which theperson to be cooled is received, and an air outletin the upper part of said receptacle above the point where the head ofthe person is located.

7. A cooling and- Ventilating device for ,per-

sons, comprising a receptacle adapted to receive the receptacle andseparately supported, and:

connecting means kfor connecting saidcooling essere and condensertedwitn seid svnzportin ineens but locat outside said iw and anevaporator, supmrted wi said canopy by seid mi means and positioned tocool the sir in seid canopy and circulate it by convection.

9. En an nir conditioning device, the coinninetion of mesma 1r-11 ecenepy for isolatins e none of immediate occupancy, Supportine means forsaid canopy, a motor, compressor and condenser associated with saidsupporting menne out ioceted outside said canopy, end sn evaporator,supported within smid canopy by seid supporting ineens sind positionedto cooi the sir in seid canopy and circulate it by convection, seidcanopy keine" suon as to permit e change oi air therein by the psssegeoi sir through restricted openings.

lo. in en nir conditioning' device, the comici notion of inciuding e,canopy ior isoisting o sone of immediate occucy, `sugrziportiiug meansfor said canopy, a motor,'compressor and condenser associated with saidsupporting means but located outside said canopy, and an evaporator,supported within ,said canopy by said supporting means and positioned tocooithe air in said canopy und circulate it by convection.

and means to'catch and conduct outside said canopy the moisturecondensing on said evaporator.

1i. In an air conditioning device, the combinotion oi' means including'o canopy for isolating A e, zone ofv .1 occupancy, supporting means forsaid canopy, a motor, compressor and condenser associated with seidsupporting means but located outside said canopy, and an evaporstor,vsupported within said canopy by said supporting means and positioned tocool the air in lsaid canopy and circulate it by convection. and meansto catch andvconduct outside said canopy the moisture condensing on saidevap-4 orator, said means comprising a series of louvre pistes sodisposed below said evaporator as to permit o downward motion ofairtiierethrough but to carry condensate to one side, a trough forcatching said condensate and means for conducting said condensate to areceiving vessel.

